CN101410216B - Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube - Google Patents
Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube Download PDFInfo
- Publication number
- CN101410216B CN101410216B CN200780011547XA CN200780011547A CN101410216B CN 101410216 B CN101410216 B CN 101410216B CN 200780011547X A CN200780011547X A CN 200780011547XA CN 200780011547 A CN200780011547 A CN 200780011547A CN 101410216 B CN101410216 B CN 101410216B
- Authority
- CN
- China
- Prior art keywords
- welding
- contact tube
- welding wire
- wire
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/021—Cleaning pipe ends or pipe fittings, e.g. before soldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/328—Cleaning of weld torches, i.e. removing weld-spatter; Preventing weld-spatter, e.g. applying anti-adhesives
Abstract
The invention relates to a method of cleaning a contact tube (20) of a welding torch (10), via which contact tube (20) a welding wire (13) moved to the welding torch (10) from a wire reel (14) or a wire drum via a wire delivery device (11) is supplied with electrical energy, and to a welding unit (1) and a contact tube (20) for the welding torch (10) of such a welding unit (1). To prolong the service life of a contact tube (20) of a welding torch (10), provision is made according to the invention for the welding wire (13) to be moved back at least once in the direction of the wire reel (14) or wire drum until the end (27) of the welding wire (13) lies at least within the length (36) of the contact tube (20), and for the welding wire (13) to then be moved forward again, in particular into the initial position again.
Description
Technical field
The present invention relates to clean the method for the contact tube (contact tube) of welding torch, supply electric energy through said contact tube to welding wire, said welding wire moves to welding torch via wire-feed motor by silk dish or silk drum.
In addition, the present invention relates to have the welding equipment of current source and welding torch, this welding torch comprises the contact tube that is used for to welding wire supply electric energy, and said welding wire moves to welding torch via wire-feed motor by the silk dish.
At last, the present invention relates to be used for the contact tube of the welding torch of above-mentioned welding equipment.
Background technology
The present invention relates to welding method, wherein welding wire is fed in the welding torch zone by silk dish or silk drum.Here, electric arc burns between welding wire and workpiece to be connected.In order to set up electrically contacting of welding wire, through contact tube guiding welding wire, this contact tube is arranged in the welding torch and with current source and is connected.For this reason, contact tube has endoporus, and welding wire is fed to workpiece through this endoporus.The required welding current of pilot arc flows into welding wire via contact tube between welding wire and workpiece.In order to realize low resistance, need be with the suitable adaptive gage of wire of the endoporus in the contact tube, and its design ground is bigger.In addition, the friction of welding wire in the contact tube endoporus can not be too big, because otherwise when moving welding wire, can cause problem, in addition, also possibly bring the more galling of welding wire.Usually, select the contact tube diameter of bore, than gage of wire big approximately 20%.
The present invention can be fit to whole welding processes, and in these welding processes, welding wire is as sacrificial electrode.
In welding process, the contact tube of lay special stress on welding wire.For example, be called " leakage " contact tube, reason is that diameter becomes greatly because of the welding wire friction, and spark erosion or secondary arc (secondary electric-arc) occur in the endoporus of contact tube.This situation is attributed to the mechanical stress of contact tube endoporus, said contact tube usually by the conduction good metal particularly copper constitute.Therefore, the time one is long, the contact variation of welding wire, and welding process becomes unstable.This can make secondary arc form, and this secondary arc more very, and shortens its service life to the stress of contact tube.Because have particle on the welding wire, perhaps welding wire carries particle, so contact tube " leakage " becomes more serious.
Another problem is so-called contact tube " obstruction ".Here, present the wearer that welding wire causes and be deposited in the endoporus of contact tube, reduce the diameter of contact tube endoporus gradually.Randomly, can offset " obstruction " of contact tube endoporus through the power that welding wire is presented in increase.But, do for weldquality like this and have negative effect, and caused extra wearing and tearing, therefore quickened further " obstruction " contact tube endoporus.
Therefore, as the consumable accessory of welding torch, contact tube must be changed in the relatively short time interval.In order to pull down the contact tube of wearing and tearing, and new contact tube is installed, must be turned off welding equipment, and welding equipment can not be used for producing.Therefore, particularly to the robot welder, letting service life of contact tube prolong as far as possible and letting time interval of changing contact tube prolong as far as possible is one of main purpose.
Summary of the invention
Therefore, the objective of the invention is to set up above-mentioned clean method, can use contact tube for more time thus.Said method should be simple as far as possible, and can implement as far as possible apace, and should be as far as possible little influence welding process.At last, said clean method should be practiced thrift cost as far as possible and implement as far as possible easily.
Further aim of the present invention is to obtain above-mentioned welding equipment, can prolong the service life of contact tube thus than welding equipment commonly used.
At last, further aim of the present invention is to obtain a kind of contact tube of longer service life, and this contact tube will use with the welding torch of above-mentioned welding equipment.
With regard to said method, the object of the invention is realized in the following manner: welding wire moves once along silk dish direction at least backward, and portion is positioned at contact tube up to end of welding, and welding wire then moves forward once more.Said clean method is characterised in that welding wire moves once at least backward, and then moves forward, and wherein required than welding process movably backward welding wire moves farther significantly backward, promptly is positioned at contact tube up to it at least.Because this of welding wire moves backward, the wearer of contact tube inner accumulation comes off, and part is pulled away, and is fed to the contact tube back, and in the process that moves forward subsequently, the wearer that comes off will outwards be presented via the contact tube endoporus by welding wire.Move backward and the moving forward subsequently of welding wire can also utilize existing welding equipment to implement with very simple mode through suitable control wire-feed motor.According to the pollution level of contact tube, welding wire can carry out several times backward/move forward, with the cleaning contact tube.Because welding wire is used to clean can implementing with mode especially fast with moving forward backward of contact tube, so the influence that welding process receives is very little.
In the process that welding wire moves forward for the last time, welding wire is preferably retracted its original position, and will correspondingly continue welding process from this position of welding wire.
According to a further general feature of the present invention, let welding wire move backward along the whole length of contact tube at least.Therefore, the whole wear particles that stick on the welding wire can be fed to the contact tube back, and take away by adequate measure.
In addition, these additional measures comprise for example let air particularly compressed air flow through the welding wire end regions that is in withdrawn position.Owing to there is air, can blow away the wearer that sticks on the welding wire and be accumulated in the contact tube end, make contact tube can not stop up again.
Equally, when welding wire is in withdrawn position, the welding wire end regions can be aspirated, thereby wearer can be removed and collect selectively.But preferably in the ensuing process that moves forward, the endoporus from welding torch inside via contact tube is outwards presented wearer.
Another advantage can realize in the following manner: welding wire move backward clean before, the welding wire end is melted.Thereby; The welding wire free end is fused into the bigger sphere vault (calotte) of diameter; When drawing back welding wire, this sphere vault is used as piston in the contact tube endoporus, presents whole wearers backward and wearer is come off from endoporus thus; These wearers will be transported away in welding wire moves forward process.
In order to prevent that spherical vault from becoming too big; Can't move welding wire backward perhaps only just can move under the situation of exerting oneself very much; Then must be according to used solder wire material, input specific welds electric current and/or specific welds voltage are realized this fusing in special time period.After welding wire free end fusing, move welding wire immediately backward, formed and still hot sphere vault even deform more easily, and so can push the endoporus that passes contact tube.
Except the filler wire end, can also welding wire move backward clean before, let the mechanically deform of welding wire end, thereby realize superior cleaning.
This mechanically deform for example can be cut away the welding wire end before cleaning and realizes by moving backward at welding wire.Therefore, will form sharp edges, and can peel off the wearer that exists in the contact tube endoporus thus very ideally and it is outwards transported in the welding wire end.
In order to realize superior cleaning, welding wire can move several times backward, is positioned at contact tube at least and can moves forward once more up to the welding wire free end.Backward/number of times that moves forward can adjust according to the pollution level of contact tube.Can be used as conventional item and clean contact tube, for example in the each welding process of beginning.
Equally, can also be when each welding process finishes backward with move forward welding wire at least once, thereby suitably clean contact tube.
Also can in welding process, let the welding wire forward/backward move cleans.
In this case, according to welding current and/or the weldingvoltage measured, welding wire can be backward/move forward.Can confirm the wearing and tearing of contact tube from welding current and/or weldingvoltage, thereby creationaryly clean with moving forward backward by this.
Backward/welding wire that moves forward cleans contact tube also can carry out according to wire-feed motor electric current and/or the voltage measured, because " obstruction " degree of contact tube can be judged or estimates according to it at least from the curtage of wire-feed motor.It is many more that the welding wire wearer stops up the contact tube endoporus; It is just high more then to present the required electric current of welding wire through the contact tube endoporus, so after surpassing the value of hoping, just can carry out cleaning course; Be that welding wire moves in contact tube backward, welding wire moves forward and returns its original position subsequently.
Equally, can also be after the fixedly pre-determined number that the required welding wire forward/backward of welding process moves, let welding wire backward with move forward the cleaning contact tube.
Welding wire backward/move forward and can in independent cleaning station, carry out, before the cleaning, welding torch is positioned in this cleaning station.Therefore, the cleaning required time of contact tube will increase, but can utilize the additional measures that exists in the cleaning station, for example compressed air or pumping equipment.This measure is particularly suitable for the robot welder that can suitably programme.
Second purpose of the present invention also can be realized by above-mentioned welding equipment; The unit that wherein is used to control wire-feed motor is arranged to make welding wire to move at least once backward; At least be positioned at the length of contact tube up to the welding wire end, welding wire is moved forward, be used for cleaning contact tube.Here, the control corresponding unit can be provided with specially and be used for cleaning, and perhaps the control corresponding unit can be formed through suitably programming again by the control module that being used for of having existed presented welding wire.It is few especially to rectify and improve the effort that this welding equipment need pay.
According to further aspect of the present invention, can be arranged on welding wire backward/move forward and carry out letting in the process of cleaning air flow through the equipment of welding torch.By this gas flow equipment, can blow the wearer that sticks on the welding wire off.Here, except by the welding wire cleaning, can implement and/or support this to blow step off by the required protective gas of welding process.
In addition, can be arranged on welding wire backward/move forward and carry out in the cleaning course equipment of suction welding torch.Therefore, can take away the wearer that adheres to welding wire selectively.
By welding wire backward/move forward up to its be positioned at contact tube with the cleaning contact tube, in order more to improve this cleaning effect, can be provided for the free-ended equipment of filler wire.This melting unit can be realized by the equipment of independent setting, for example is arranged in the corresponding cleaning station, or can only implements to melt step through short time increase welding current and/or weldingvoltage.
In addition, what have advantage is, a kind of equipment is set, be used for welding wire backward/move forward clean before, the welding wire free end is carried out machining, particularly cut away the welding wire free end.
According to further aspect of the present invention, the unit of control wire-feed motor is set, it is connected with the unit of measuring welding current and/or weldingvoltage.Therefore, the required welding wire of cleaning backward/move forward and can carry out according to determined welding current and/or weldingvoltage.The contact tube pollution can cause the operating point displacement, and this displacement will be by the identification of control unit, so that when pollution level is too high, can start cleaning course.
In addition, perhaps in addition, the unit of control wire-feed motor also can be connected with the unit of measuring wire-feed motor electric current and/or voltage.Therefore, can carry out the welding wire cleaning according to the electric current and/or the voltage of wire-feed motor, the voltage and current of wire-feed motor will depend on the chocking-up degree of contact tube.
According to further aspect of the present invention, at least one radial hole is arranged on the contact tube.Said radial hole on the contact tube allows to take away the wearer that adheres on the welding wire extraly in the moving process backward at the required welding wire of cleaning.
Here, said at least one radial hole is arranged on that end relative with outlet welding wire contact tube with having advantage.This end at contact tube accumulates most wearer usually.
What have advantage is, the hole of some circumferential distribution is set on contact tube, can walk wearer by these pore areas.Through these holes of suitable connection,, can remove wearer with more efficiently mode for example by aspirator.
The contact tube of the welding torch that at last, the present invention also can be through being used for above-mentioned welding equipment realizes that said contact tube has at least one radial hole.
Description of drawings
With reference to accompanying drawing, will explain the present invention in more detail now.Wherein:
Fig. 1 shows the sketch map of welding equipment;
Fig. 2 shows the decomposition view of the welding torch that comprises contact tube;
Fig. 3 shows the amplification cross sectional view of the contact tube that is arranged in the welding torch;
Fig. 4 shows the contact tube among Fig. 3, has wherein drawn back welding wire and has cleaned;
Fig. 5 shows the contact tube among Fig. 4, and wherein welding wire has moved forward and cleaned;
Fig. 6 shows in the cleaning course of the present invention, the time graph of wire feed speed;
Fig. 7 is by the described instance of claim 5, shows the sketch map that welding wire changes along with the time with respect to the position of workpiece; With
Fig. 8 shows the sectional view of contact tube embodiment.
The specific embodiment
In Fig. 1, the welding equipment 1 that illustrates is used for most of different welding processes, for example MIG/MAG weldering and/or WIG/TIG weldering or electrode weldering, mariages/tandem weldering, or the like.
Welding equipment 1 comprises current source 2 with power component 3, control module 4 and the switching member 5 related with power component 3 and/or control module 4.Switching member 5 and/or control module 4 are connected with control valve 6, this control valve along protective gas 8 such as CO
2, helium or argon gas supply circuit 7 be arranged between gas reservoir 9 and the welding torch 10.
In addition, the wire-feed motor 11 that is generally used for the MIG/MAG weldering can activate by control module 4, and welding wire 13 is fed to the zone of welding torch 10 via supply circuit 12 by silk dish 14.Wire-feed motor 11 can be designed as auxiliary device or is integrated in the welding equipment 1.
The electric current that is used between welding wire 13 and workpiece to be welded 16, setting up electric arc 15 is fed to the contact tube 20 that is arranged in the welding torch 10 (referring to Fig. 2) via welding circuit 17 from the power component 3 of current source 2, and workpiece 16 to be welded also is connected to current source 2 via other welding circuit 18.Can different operation element 19 be set on welding torch 10 and regulate different welding parameters.
In addition, welding equipment 1 comprises input and/or output equipment 22, and most of different welding parameter, operator scheme or the welding procedure of welding equipment 1 can be provided with and be called by input and/or output equipment 22.Here; The welding parameter, operator scheme or the welding procedure that are provided with via input and/or output equipment 22 can pass to control module 4; And next each parts of welding equipment 1 will be activated by input and/or output equipment, and/or input and/or output equipment 22 will be preset corresponding desired value and be used to control purpose.Welding torch 10 is connected with welding equipment 1 via Hose Jacket piece installing 23, and each bar circuit is set in the Hose Jacket piece installing.
Fig. 2 shows the decomposition view of welding torch 10.Welding torch 10 comprises bend pipe 21, and contact tube 20 is fastened on it.Gas nozzle 24 is arranged in contact tube 20 tops.Welding torch 10 is connected with corresponding circuit via Hose Jacket piece installing 23.Welding wire 13 can also be fed in the contact tube 20 of welding torch 10 via Hose Jacket piece installing 23.
Fig. 3 shows the amplification cross sectional view that runs through the contact tube of arranging in the welding torch 10 20.Contact tube 20 has endoporus 25, and its somewhat larger in diameter is in used welding wire 13.Welding wire 13 for example is fed to contact tube 20 via flexible pipe 26.The certain length of contact tube 20, so-called extension elongation are stretched out in the end 27 of welding wire 13.Usually, this free welding wire length between 10mm between the 25mm.Through moving welding wire 13, wearer 28 is transported in the contact tube 20, cause stopping up gradually endoporus 25, as schematically illustrated in the endoporus 25.
Can find out that from Fig. 4 and Fig. 5 according to the present invention, welding wire 13 moves backward, promptly away from workpiece 16, is positioned at contact tube 20 at least up to the end 27 of welding wire 13, promptly is positioned at flexible pipe 26 (Fig. 4).Welding wire 13 can also move along the whole length 36 of contact tube 20 backward.Through backward/welding wire 13 that moves forward, shown in Figure 4 and 5, peel off wearer 28, it is taken away and drops out from contact tube 20, perhaps can for example blow or aspirate and take away selectively by adequate measure.When moving welding wire 13 backward, wearer is peeled off, and thus, in welding wire 13 process that moves forward subsequently, is pushed out endoporus 25.In this way, will slow down the obstruction of the endoporus 25 of contact tube 20, and prolong the service life of contact tube 20.Therefore, no longer need interrupt welding process and frequent change contact tube 20.After welding wire 13 moved backward, welding wire moved forward to its original original position towards the direction of workpiece 16, and continued welding process, and perhaps welding wire moves forward at least in part, and again or several times move backward.By the addition thereto hole 29 on the contact tube 20 for example, can assist to remove wearer 28 (referring to Fig. 8).
Certainly, can let welding wire 13 and not exclusively presenting backward, and only partly move to backward in the endoporus 25 of contact tube 20, then move forward towards the direction of workpiece 16 again from contact tube 20.Can also let cleaning course comprise the plurality of continuous circulation,, then present forward once more so that for example welding wire 13 at first only is fed in the contact tube 20 backward; After this, for example in ensuing circulation, the position after welding wire 13 will be fed to it and lean on most; Promptly get into flexible pipe 26, and present forward again.And this moving backward can also be regulated more subtly.Therefore, in fact, will be to contact tube 20 realizations cleaning one by one.
Main advantage is, can clean contact tube 20, and wearer 28 not can because of welding wire 13 backward/move forward to and use electric current in the contact tube 20, thereby secondary arc does not appear, prevent generation welding wire 13 seam (burning-on) on the contact tube 20.In addition, cleaning course can also after welding process, be carried out, wherein; For example after welding process is accomplished and before cleaning course starts; Start regularly member, thereby guarantee suitably to cool off welding wire 13, and only after special time period, just start cleaning course.
Fig. 6 and Fig. 7 schematically show wire feed rate 37 and position the sketch map in different time sections of welding wire 13 with respect to workpiece 16.Be used for lighting and stable arc 15 the startup stage 30, welding wire 13 moves forward towards workpiece 16, and through applying corresponding weldingvoltage U and welding current I, welding wire 13 then leaves from workpiece 16 once more, thus formation electric arc 15.The startup stage 30 accomplish after; With the welding process stage 31 that has plurality of continuous, this depends on desirable welding process, in these stages; For example welding wire 13 will move to workpiece 16; And in order to impel molten drop to come off, will leave from workpiece 16 again, shown in so-called CMT process (cold metal transient process).Certainly, also can utilize other known welding processes, for example arc spray process (spray-electric-arc process), short circuit process, pulse process etc.In the welding process stage 31, the rate curve of corresponding welding wire 13 can be referring to Fig. 5.In welding process; Can carry out cleaning stage 33 of the present invention; In this stage, welding wire 13 will be corresponding mobile backward and correspondingly far mobile apace from workpiece 16, so that welding wire will end in the contact tube 20 and/or will move fully backward; Draw back welding wire and get into said core from whole contact tube 20 thus, promptly flexible pipe 26.Next, welding wire 13 generals move forward towards the direction of workpiece 16 again, and move forward to its original position backward once more.During being divided into two sections 32, welding process stage 31 of 32 ', carry out cleaning stage 33.As long as welding wire 13 with corresponding mode fast backward with move forward, then cleaning stage 33 can carry out in some milliseconds time period, this also just the During normal welding process do not receive the reason of cleaning course appreciable impact.Equally, can also perhaps, when welding process begins or finish, carry out cleaning stage 33 according to welding current I and/or weldingvoltage U according to the electric current and/or the voltage of wire-feed motor.
Fig. 8 shows the embodiment of contact tube 20, and this contact tube has at least one radial hole 29 on the end 34 with respect to the outlet 35 of welding wire 13.Radial hole 29 allows to take away better in the moving process backward at welding wire 13 wearer 28 of welding wire 13.Possible is to take away wearer 28 and can improve by compressed air or pumping equipment (not shown).Here, can also let said core, promptly flexible pipe 26, directly end at 29 the place aheads, hole, so that come off and the wearer 28 drawn back can blow off via hole 29, wherein welding wire 13 is fed to welding torch 10 via said core.And, preferably wearer 28 is released contact tube 20 inside through moving forward of welding wire 13.
Even so; Can also let cleaning course automatically perform; Being control module confirms pollution level and whether need correspondingly introduce cleaning course through assessment electric current and/or voltage, promptly according to standard value, in welding process owing to the contact tube wearing and tearing can cause the generation that changes.If reach specific threshold, represent that then the high wear of not allowing has appearred in contact tube 20, and will clean contact tube, for example by method of the present invention.After having cleaned contact tube 20, welding current in the ideal case will be the same with the standard value of hope high.
And, can also pass through other parameters, confirm the pollution level of contact tube 20 especially for the motor current of wire feed.For this reason, detect the motor current of wire-feed motor, this electric current originates in specified standard value, increases because contact tube stops up, up to reaching the high threshold of not allowing.Point will be carried out clean method of the present invention at this moment, and motor current can be reduced to its standard value in the ideal case.Arrive again after the threshold value, will start further cleaning.And, as a kind of standard, can, each welding process perhaps after the stage, perhaps after the specific operating time, carry out cleaning course when beginning and finish in the welding process that reaches specific quantity.
Can also be not through welding wire 13 continuously backward/move forward and carry out cleaning course, but moving forward and/or carrying out so-called vibration motion in the moving process backward and carry out cleaning course through welding wire 13.For example, can in the process of moving forward, welding wire 13 be released contact tube 20 forward and reach 2mm, next roll back 1mm again.This motion will be carried out down, till welding wire 13 and end thereof have been seen off from contact tube 20.
Certainly, can also said cleaning course be used for hand-held welding torch.
Claims (27)
1. the method for the contact tube (20) of a cleaning welding torch (10); To welding wire (13) electric energy is provided via said contact tube; Said welding wire (13) moves to welding torch (10) via wire-feed motor (11) by silk dish (14) or silk drum, it is characterized in that, said welding wire (13) moves once along the direction of silk dish (14) or silk drum backward at least; At least be positioned at the length (36) of contact tube (20) up to the end (27) of welding wire (13), and next welding wire (13) moves forward once more.
2. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, in the process that moves forward the last time, said welding wire (13) is retracted its original position.
3. according to claim 1 or claim 2 the method for contact tube (20) of cleaning welding torch (10) is characterized in that said welding wire (13) moves along the whole length (36) of contact tube (20) at least backward.
4. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, when welding wire (13) when being in withdrawn position, lets air flow through the zone of the said end (27) of welding wire (13).
5. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, when welding wire (13) when being in withdrawn position, and the zone of the said end (27) of suction welding wire (13).
6. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, welding wire (13) move backward clean before, make said end (27) fusing of welding wire (13).
7. the method for the contact tube (20) of cleaning welding torch as claimed in claim 6 (10) is characterized in that, according to the material of used welding wire (13), and the said end (27) of filler wire (13) through apply welding current and/or weldingvoltage a time period.
8. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, welding wire move backward clean before, make said end (27) mechanically deform of welding wire (13).
9. the method for the contact tube (20) of cleaning welding torch as claimed in claim 8 (10) is characterized in that, welding wire move backward clean before, the said end (27) of cutting away welding wire (13).
10. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, welding wire (13) moves several times backward, is positioned at the length (36) of contact tube (20) at least up to the said end (27) of welding wire (13), and moves forward once more.
11. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, when welding process begins, welding wire (13) at least backward with move forward once.
12. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, when welding process finishes, welding wire (13) at least backward with move forward once.
13. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that, in welding process, welding wire (13) moves at least backward and once and once more moves forward.
14. the method for the contact tube (20) of cleaning welding torch as claimed in claim 13 (10) is characterized in that, according to welding current and/or the weldingvoltage measured, welding wire (13) moves backward and moves forward once more.
15. the method for the contact tube (20) of cleaning welding torch as claimed in claim 13 (10) is characterized in that, according to the curtage of the wire-feed motor (11) of the welding wire of measuring (13), welding wire moves backward and moves forward once more.
16. the method for the contact tube (20) of cleaning welding torch as claimed in claim 13 (10) is characterized in that, corresponding to the fixedly pre-determined number that the required welding wire forward/backward of welding process moves, welding wire (13) moves once at least backward, and moves forward once more.
17. the method for the contact tube (20) of cleaning welding torch as claimed in claim 1 (10) is characterized in that welding torch (10) is positioned at cleaning unit, and welding wire (13) moves once in cleaning unit at least backward, and moves forward once more.
18. welding equipment (1) that has current source (2) and welding torch (10); Said welding torch comprises the contact tube (20) that electric energy is provided to welding wire (13); Said welding wire (13) moves to welding torch (10) via wire-feed motor (11) by silk dish (14), it is characterized in that, is provided with the unit (4) of control wire-feed motor (11); So that welding wire (13) moves at least once backward; At least be positioned at the length (36) of contact tube (20) up to the end of welding wire (13), and welding wire is moved forward, with cleaning contact tube (20).
19. welding equipment as claimed in claim 18 (1) is characterized in that, be provided be used for welding wire (13) clean backward/process of travelling forward makes air flow through the equipment of welding torch (10).
20. like claim 18 or 19 described welding equipments (1), it is characterized in that, be provided be used for welding wire (13) clean backward/process of travelling forward aspirates the equipment of welding torch (10).
21. welding equipment as claimed in claim 18 (1) is characterized in that, be provided be used for welding wire (13) backward/equipment of said end (27) fusing that makes welding wire (13) before cleaning of moving forward.
22. welding equipment as claimed in claim 18 (1) is characterized in that, be provided be used for welding wire (13) backward/move forward and the equipment of machining carried out in the said end (27) of welding wire (13) before cleaning.
23. welding equipment as claimed in claim 18 (1) is characterized in that, the unit (4) that is used to control wire-feed motor (11) is connected to the unit that is used to measure welding current and/or weldingvoltage.
24. welding equipment as claimed in claim 18 (1) is characterized in that, the unit (4) that is used to control wire-feed motor (11) is connected to and is used to measure the electric current of wire-feed motor (11) and/or the unit of voltage.
25. welding equipment as claimed in claim 18 (1) is characterized in that, contact tube (20) is provided with at least one radial hole (29).
26. welding equipment as claimed in claim 25 (1) is characterized in that, said at least one radial hole (29) is arranged in the end (34) relative with outlets welding wire (13) (25) contact tube (20).
27. welding equipment as claimed in claim 25 (1) is characterized in that, contact tube (20) is provided with the hole (29) of some circumferential distribution.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA573/2006 | 2006-04-04 | ||
| AT0057306A AT503468B1 (en) | 2006-04-04 | 2006-04-04 | PROCESS FOR CLEANING A CONTACT TUBE OF A WELDING BURNER |
| PCT/AT2007/000037 WO2007112461A1 (en) | 2006-04-04 | 2007-01-29 | Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101410216A CN101410216A (en) | 2009-04-15 |
| CN101410216B true CN101410216B (en) | 2012-08-22 |
Family
ID=37909671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780011547XA Active CN101410216B (en) | 2006-04-04 | 2007-01-29 | Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8674264B2 (en) |
| EP (1) | EP2001630B1 (en) |
| JP (1) | JP4961472B2 (en) |
| CN (1) | CN101410216B (en) |
| AT (2) | AT503468B1 (en) |
| ES (1) | ES2371676T3 (en) |
| PL (1) | PL2001630T3 (en) |
| WO (1) | WO2007112461A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9061366B2 (en) | 2007-06-22 | 2015-06-23 | Illinois Tool Works Inc. | Welding system and method having controlled liner contour and welding wire curvature |
| ES2423030T3 (en) * | 2008-06-18 | 2013-09-17 | Henkel Ag & Co. Kgaa | Procedure and apparatus for automatic maintenance of a welding torch head |
| US9321116B2 (en) * | 2009-03-05 | 2016-04-26 | United Technologies Corporation | Cold metal transfer gas metal arc welding apparatus and method of operation |
| JP5118712B2 (en) * | 2010-02-05 | 2013-01-16 | 三菱重工業株式会社 | Welding method and welded member |
| FI125746B (en) | 2010-05-26 | 2016-01-29 | Kemppi Oy | Method and arrangement in a gas arc welding machine such as a MIG / MAG welding machine |
| US9193005B2 (en) | 2011-11-02 | 2015-11-24 | Illinois Tool Works Inc. | Contact tip with contoured bore |
| EP2664405B1 (en) * | 2012-05-14 | 2017-02-22 | Dinse G.m.b.H. | Cleaning station for welding torches |
| AT513674B1 (en) * | 2012-11-28 | 2014-08-15 | Fronius Int Gmbh | Method and device for monitoring the protective gas in a welding process |
| US20140367366A1 (en) * | 2013-06-14 | 2014-12-18 | Hobart Brothers Company | Systems and methods of conditioning an air flow for a welding environment |
| US20160346867A1 (en) * | 2014-02-11 | 2016-12-01 | John Hill | Method Of Joining Dissimilar Materials |
| EP3165314A1 (en) * | 2015-11-06 | 2017-05-10 | Siegfried Plasch | Overlay welding method |
| CN105345229B (en) * | 2015-12-09 | 2020-01-24 | 重庆镭宝激光科技有限公司 | Welding wire feeding guide pipe device of welding robot |
| CN114472391B (en) * | 2021-12-28 | 2023-04-28 | 中铁隧道局集团有限公司 | Pipeline slag removing device for slurry pipeline in tunnel construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280043A (en) * | 1978-02-08 | 1981-07-21 | L'air Liquide, Scoiete Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Welding torch with mechanical and pneumatic cleaning |
| US4450341A (en) * | 1981-11-30 | 1984-05-22 | Townmotor Corporation | Contact tip for a welding head |
| CN1691997A (en) * | 2002-10-31 | 2005-11-02 | 弗罗纽斯国际有限公司 | Method and equipment for cleaning welding torch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE444778B (en) * | 1985-02-15 | 1986-05-12 | Esab Ab | CONTACT NOZZLE WITH A SCRIPTURAL PASSAGE FOR A MELTABLE SWEET STRING |
| JPS62166077A (en) * | 1986-01-14 | 1987-07-22 | Toyota Motor Corp | Welding wire feeding method in arc welding |
| JPS6420972A (en) * | 1987-07-17 | 1989-01-24 | Japan Steel Works Ltd | Manufacture of electrodeposition type grindstone |
| JP3186274B2 (en) * | 1992-12-16 | 2001-07-11 | 大和精工株式会社 | Torch cleaner for welding |
| DE19739217A1 (en) * | 1997-09-08 | 1999-03-11 | Michael Kett | Unit for welding under protective gas |
| JPH11104840A (en) * | 1997-09-29 | 1999-04-20 | Hitachi Constr Mach Co Ltd | Cleaning jig for contact tip of welding torch |
| JP2001246472A (en) * | 2000-02-29 | 2001-09-11 | Bizen Hatsujo Kk | Method of arc welding using contact tip, method of regenaration of contact tip, reproducing tool for contact tip, and drawing tool for core metal for contact tip |
-
2006
- 2006-04-04 AT AT0057306A patent/AT503468B1/en not_active IP Right Cessation
-
2007
- 2007-01-29 JP JP2009503361A patent/JP4961472B2/en not_active Expired - Fee Related
- 2007-01-29 AT AT07701283T patent/ATE529215T1/en active
- 2007-01-29 PL PL07701283T patent/PL2001630T3/en unknown
- 2007-01-29 CN CN200780011547XA patent/CN101410216B/en active Active
- 2007-01-29 EP EP07701283A patent/EP2001630B1/en active Active
- 2007-01-29 WO PCT/AT2007/000037 patent/WO2007112461A1/en active Application Filing
- 2007-01-29 US US12/224,752 patent/US8674264B2/en not_active Expired - Fee Related
- 2007-01-29 ES ES07701283T patent/ES2371676T3/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4280043A (en) * | 1978-02-08 | 1981-07-21 | L'air Liquide, Scoiete Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Welding torch with mechanical and pneumatic cleaning |
| US4450341A (en) * | 1981-11-30 | 1984-05-22 | Townmotor Corporation | Contact tip for a welding head |
| CN1691997A (en) * | 2002-10-31 | 2005-11-02 | 弗罗纽斯国际有限公司 | Method and equipment for cleaning welding torch |
Also Published As
| Publication number | Publication date |
|---|---|
| US8674264B2 (en) | 2014-03-18 |
| ATE529215T1 (en) | 2011-11-15 |
| AT503468A1 (en) | 2007-10-15 |
| US20090107971A1 (en) | 2009-04-30 |
| JP2009532209A (en) | 2009-09-10 |
| CN101410216A (en) | 2009-04-15 |
| EP2001630B1 (en) | 2011-10-19 |
| EP2001630A1 (en) | 2008-12-17 |
| ES2371676T3 (en) | 2012-01-09 |
| JP4961472B2 (en) | 2012-06-27 |
| PL2001630T3 (en) | 2012-03-30 |
| WO2007112461A1 (en) | 2007-10-11 |
| AT503468B1 (en) | 2008-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101410216B (en) | Method of cleaning a contact tube of a welding torch, and a welding torch and contact tube | |
| US20210245289A1 (en) | Systems, Methods, and Apparatus to Preheat Welding Wire | |
| RU2406597C2 (en) | Method of welding | |
| CA3061946C (en) | Systems and methods to preheat welding wire | |
| US20180099346A1 (en) | Systems, methods, and apparatus to preheat welding wire | |
| RU2465999C2 (en) | Contact tube for welding torch | |
| JP2015522426A (en) | Method and system for starting and stopping hot wire processing | |
| WO2014013324A2 (en) | Method and system for gas metal arc welding and a contact tip used for the same | |
| CN102596478B (en) | Non-consumable electrode type arc welding apparatus | |
| US20130020289A1 (en) | Method and system to start and stop a hot wire system | |
| CN104203478A (en) | Semiautomatic welding system, conversion adapter kit, and welding torch | |
| EP3774151B1 (en) | Systems, methods, and apparatus to preheat welding wire | |
| JP2006102776A (en) | Arc welding apparatus and arc welding robot system | |
| JPH08309536A (en) | Welding wire feeder | |
| JP2002160059A (en) | Arc starting method and welding apparatus in consumable electrode arc welding | |
| US6753497B1 (en) | Method and apparatus for initiating welding arc using plasma flow | |
| KR101095570B1 (en) | Carbon dioxide welding systemp | |
| GB2392863A (en) | Welding torch having integral collet | |
| US20190262926A1 (en) | Current limiting secondary contact | |
| JP2009138219A (en) | Arc thermal spraying method | |
| JP2001239368A (en) | Arc welding equipment and method and welding torch used therefor | |
| EP0357696B1 (en) | Cooling device | |
| CN113825580B (en) | Arc welding method and arc welding device | |
| GB2330102A (en) | Air-arc gouging | |
| JPH091350A (en) | Control unit for gas shield arc welding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |